<?php
/**
* @author [YS.PRO]
* @copyright Copyright © 2009, [YS.PRO]
* http://ys-pro.com
* @version 0.2
*/
class Alexa {
const CURL_TIMEOUT = 20;
const ALEXA_SITE_INFO_URL = 'http://www.alexa.com/siteinfo/';
private $domain = NULL;
public function __construct($domain = NULL) {
if (!is_null($domain)) {
$this->domain = $domain;
} else {
throw new Exception('You must pass domain name to constructor!');
}
}
public function setDomain($domain) {
$this->domain = $domain;
}
public function getAlexaRank() {
$response = $this->get(self::ALEXA_SITE_INFO_URL . $this->domain);
// parse string with alexa ranking info
$regexp = '#<div class="data .+?">(.*?)</div>#si';
preg_match($regexp, $response, $matches);
if (!isset($matches[1])) {
return FALSE;
}
preg_match('#[\d,]+#s', $matches[1], $m);
if (!isset($m[0])) {
return FALSE;
}
$rank = $m[0];
// delete commas
$rank = str_replace(',', '', $rank);
return (int) $rank;
}
protected function get($url) {
$hCurl = curl_init($url);
curl_setopt($hCurl, CURLOPT_TIMEOUT, self::CURL_TIMEOUT);
curl_setopt($hCurl, CURLOPT_RETURNTRANSFER, TRUE);
return curl_exec($hCurl);
}
}
?>
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